The recurrence equations for voltage and AC strength estimate on counting of the measured value in the automated systems of dispatching control (ASDC) are presented. The dependence of the dynamic component of the estimate error of mean square value of the duration of the measurement is considered.
N.M. Lyogky, K.V. Ermakov
The role of an integrated automation system of operation management in competitive recovery of industrial enterprises is shown. The correspondence of a current state of information technology in the domestic industry to trends in automation development of operation management is considered.
On the basis of the algorithm of maximum likelihood in the asymptotic Markov approximation the analytical equations for the output effect of the optimum (quasioptimum) filtering device are received. This device provides the maximum possible signal-to-noise ratio (suppression of non-Gaussian noise, decorrelation of noise and optimum matched filtering of a signal in white Gaussian noise).
Kh.T. Turanov, E.D. Pserovskaya, D.V. Volkov
For the first time in the theory of fastening of solid-state freight the case when the freight makes the movement relative to the floor of the car with the set acceleration and at this moment its speed is also known is considered. Results of the analytical description of movement of freight relative to the car are stated. It is established that at the accounting of force of inertia in the relative movement there will be less shift of freight across the car, lengthening and efforts of each flexible element.
A.S. Kosmodamiansky, V.I. Vorob'yov, A.A. Pugachyov, A.V. Samotkanov, D.A. Bondarenko
The structure and the principles of operation of the unifying physical model of the traction electric drive with asynchronous motors containing the cooling system with the frequency and adjustable electric drive of the fan are presented. Quantitative indices of simulation errors are given.
K.A. Sergeev, O. Yu. Krivich, I.N Rusnak
The general algorithm of an assessment of consumer properties of solid-rolled railway wheels is stated. Formulas for calculation of indicators of consumer properties which allow to determine the life cycle cost of wheels are given.
D.A. Yagovkin, O.V. Mel'nichenko, A.Yu. Portnoy, S.G. Shramko
The force diagram of the rectifier-inverter transducer of an electric locomotive on the basis of power IGBT modules and its control system are described. Such upgrading allows to reduce considerably the reactive power of an electric locomotive at the expense of the change of an angle of phase shifting between input current and voltage, therefore, to increase electric locomotive power factor in a traction mode.
V.I. Apattsev, M.G. Lysikov, A.M. Ol'shansky
The approach application-specific of artificial neural networks to operation problems of railway systems, to questions of forecasting and updating of reference data for the train schedule graphing is considered. The main tasks of neural networks synthesis are set and generalities of their designing for railway and transport problems are formulated.
The issues of improvement of passenger servicing on railway transport objects by the means of adaptation and application of the modern equipment and technologies in the field of client servicing are examined. The calculation method of efficiency of application of the passenger queue management system in booking offices is offered.
A new approach to the formation of optimum management structure of the transport company providing the high-level logistic services is offered. It is based on the application of the theory of the cluster analysis and composed of several stages.
The mathematical problem definition of calculation of the application for train locomotives in the on-line mode is offered. The heuristic algorithm of information processing using simulation models of current state of the marshalling yard is developed. The task is entered in the information technology of the station traffic controller and calculated on the decision as a part of information system of daily planning.
E.K. Autov, V. V. Baginova, S. B. Lyovin, A.N. Rakhmangulov
The approach to the operation of empty cars yard by the operator company is considered in the article. This approach is based on the idea of the balance of resource flows. The formulation of mathematical model of the optimization control of empty cars yard on the criterion of a minimum of resource expenses is given.
The possible approach to model construction of the human influence assessment on the functioning of the man-machine systems based on the cognitive modeling methodology is considered. The formalization of procedures for the human influence analysis in the "man-technical system-operational environment" system for their further integration into the risk management system introduced currently in JSC "RZD", will allow to increase the quality and risk analysis assessment, and, respectively, to provide the required level of safety on a railway transport.
O.S. Yudaeva, O.G. Egorova, A.S. Gladarenko
The operation of the modern equipment and means of transport is accompanied by the considerable noise and vibration level which is negatively influencing on the human health status. From the point of view of safety the noise and the vibration are one of the most general harmful factors in passenger cars.
A.V. Alekseev, Z.A. Birshbaeva
Lading devices with a rotary-vane feeder have a wide circulation as the processing equipment for bulk freight loading in containers. The general technique of determination of power inputs connected with operation of known types of the lading devices with a horizontal axis of rotation of a rotary-vane rotor is developed.
E.P. Korol'kov, Yu.I. Golechkov, A.V. Eremin
The problem of increase in a resource of railway wheels and rails is considered. In contrast to known methods it is proposed to exclude break-in modes with high initial wear rate by giving the tread of geometric shape of natural wear-and-tear which corresponds to the wear resistance maximum. Determination methods of optimal forms are constructed on variational principles.
A.S. Ilinykh, A.V. Matafonov
Various technologies of grinding of rails and the main organizational aspects at their realization applied both on foreign and on Russian Railways are considered. The most actual directions of further development of grinding technologies of rails in the conditions of a railway track are presented.